531376 has 10 divisors (see below), whose sum is σ = 1029572. Its totient is φ = 265680.

The previous prime is 531359. The next prime is 531383. The reversal of 531376 is 673135.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 531376.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16590 + ... + 16621.

531376 is a Friedman number, since it can be written as (3*3)^(7-1)-65, using all its digits and the basic arithmetic operations.

2⁵³¹³⁷⁶ is an apocalyptic number.

It is an amenable number.

531376 is a deficient number, since it is larger than the sum of its proper divisors (498196).

531376 is a wasteful number, since it uses less digits than its factorization.

531376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33219 (or 33213 counting only the distinct ones).

The product of its digits is 1890, while the sum is 25.

The square root of 531376 is about 728.9554170181. The cubic root of 531376 is about 80.9966975232.

The spelling of 531376 in words is "five hundred thirty-one thousand, three hundred seventy-six".